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#include <iostream>
using namespace std;
int count[5][3];
int lettertoint(char c){
    switch (c)
    {
    case 'A':
        return 0;
    case 'B':
        return 1;
    case 'C':
        return 2;
    default:
        return -1;
    }
}
int main(){
    int n;
    cin>>n;
    string s;
    for (int i = 0; i < n; i++)
    {
        cin>>s;
        count[s[0]-'0'-1][lettertoint(s[1])]++;
    }
    for (int i = 0; i < 5; i++)
    {
        for (int j = 0; j < 3; j++)
        {
            if((count[i][j]>=1&&i<4)||(count[i][j]>=2&&i==4))
                continue;
            cout<<"NIE";
            return 0;
        }
    }
    cout<<"TAK";
    return 0;
}